varWeights.lmeStruct {nlme} | R Documentation |

## Variance Weights for lmeStruct Object

### Description

If `object`

includes a `varStruct`

component, the inverse of
the standard deviations of the variance function structure represented
by the corresponding `varFunc`

object are returned; else, a
vector of ones of length equal to the number of observations in the
data frame used to fit the associated linear mixed-effects model is
returned.

### Usage

## S3 method for class 'lmeStruct':
varWeights(object)

### Arguments

`object` |
an object inheriting from class `lmeStruct` ,
representing a list of linear mixed-effects model components, such as
`reStruct` , `corStruct` , and `varFunc` objects. |

### Value

if `object`

includes a `varStruct`

component, a vector with
the corresponding variance weights; else, or a vector of ones.

### Author(s)

Jose Pinheiro Jose.Pinheiro@pharma.novartis.com and Douglas Bates bates@stat.wisc.edu

### References

Pinheiro, J.C., and Bates, D.M. (2000) "Mixed-Effects Models
in S and S-PLUS", Springer.

### See Also

`varWeights`

[Package

*nlme* version 3.1-80

Index]